/**
 * Copyright 2010, 2011 Jingjing Li.
 *
 * This file is part of jplot2d.
 *
 * jplot2d is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 *
 * jplot2d is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with jplot2d. If not, see <http://www.gnu.org/licenses/>.
 */
package org.jplot2d.swing.proptable.editor;

import javax.swing.JTextField;
import javax.swing.text.JTextComponent;

import org.jplot2d.util.NumberArrayUtils;

/**
 * 
 * @author Jingjing Li
 */
public class DoubleArrayEditor extends AbstractPropertyEditor<JTextField> {

	private double[] oldValue;

	public DoubleArrayEditor() {
		editor = new JTextField();
		editor.setBorder(null);
	}

	public Object getValue() {
		String text = editor.getText();
		if (text == null || text.length() == 0) {
			return null;
		}
		String[] values = text.split(",");
		double[] result = new double[values.length];
		try {
			for (int i = 0; i < values.length; i++) {
				result[i] = Double.parseDouble(values[i]);
			}
			return result;
		} catch (NumberFormatException e) {
			return oldValue;
		}
	}

	public void setValue(Object value) {
		oldValue = (double[]) value;

		if (value == null) {
			((JTextComponent) editor).setText("");
		} else {
			((JTextComponent) editor).setText(NumberArrayUtils.toString((double[]) value));
		}
	}

}
